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34 lines
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34 lines
1.1 KiB
HTML
<p>Given an integer array <code>nums</code>, return the sum of <code>floor(nums[i] / nums[j])</code> for all pairs of indices <code>0 <= i, j < nums.length</code> in the array. Since the answer may be too large, return it <strong>modulo</strong> <code>10<sup>9</sup> + 7</code>.</p>
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<p>The <code>floor()</code> function returns the integer part of the division.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> nums = [2,5,9]
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<strong>Output:</strong> 10
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<strong>Explanation:</strong>
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floor(2 / 5) = floor(2 / 9) = floor(5 / 9) = 0
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floor(2 / 2) = floor(5 / 5) = floor(9 / 9) = 1
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floor(5 / 2) = 2
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floor(9 / 2) = 4
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floor(9 / 5) = 1
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We calculate the floor of the division for every pair of indices in the array then sum them up.
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</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> nums = [7,7,7,7,7,7,7]
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<strong>Output:</strong> 49
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
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<li><code>1 <= nums[i] <= 10<sup>5</sup></code></li>
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</ul>
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